ZOOLOGICAL DEPARTMENT. 79 



SUBOEDEE CYPSELI. SWIFTS. 



FAMILY MfCROPODID^. SWIFTS. 

 These birds are wholly insectivorous. 



H^ETURIN^E. SPINE-TAILED SWIFTS. 

 GENUS CH.ETURA STEPH. 



Head and-mucronate tail-feather of Chimney Swift, reduced. 



187-42.'5-(4O5). Chtetnra pelagica (Linn.}. *CHIMNEY SWIFT; CHIMNEY SWALLOW. 

 Very common; throughout the state; May to Sept.; "common at Traverse City " 

 (M. L. Leach); I have reports that it is common at Escanaba and Bois Blanc Island; 

 "Mackinac Island" (S. E. White); '-common at Iron Mountain" (E, E. Brewster); 

 breeds; two or three brooded; "usually single brooded in Ohio and Indiana "(A.W. Butler); 

 nests in chimneys, rarely in hollow trees or barns, occasionally in nests of barn swal- 

 lows which are first repaired, one case reported; nests made of twigs glued with a 

 secretion formed by the bird; eggs four to six, white; feeds wholly on insects; migrates 

 in fall, often leaving, it is reported, young birds in the nest. These birds are often con- 

 sidered a nuisance in houses having large chimneys. 



SUBORDER TKOCHILL HUMMINGBIRDS. 



FAMILY TROCHILID^. HUMMINGBIRDS. 



Wholly American; chiefly from Central and South America; about five hundred 

 species; food, insects and nectar from flowers; beautiful and valuable; Dr. M. Gibbs 

 thinks that the food is almost wholly nectar, but I have positive proof that they are 

 also insectivorous. 



